Metal wheel.



Patented N'ov. 4, |902'.

' `w. P. BETT-ENDURF.

METAL wHgEL. on led Qct. 22, 1900. Renewegl July 25, 1902 (No Model.)

'UNIT-ED STATES APATENT FFICE.

WILLIAM P. ISETTENDORF, OF DAVENPOR'RIOVVA.

" METAL WHEEL.

.SPECIFICATION forming partof Letters Patent No. 712,484, dated November'4, 1902. Application filed October 22,1900. Renewed July 25, 1902. Serial No. ll6,886. (No model.)

To all whom, concern..-

Beitknown that I, WILLIAM P. BETTEN- DORF, a citizen of the United States,aud a resident of Davenport, Scott county, Iowa, have invented certain new7 and useful Improvements in Metal VVheel's, ofwhich the following is a full, clear, and exact specication, reference being had to the accompanyessary rigidity of the structure.

t strain on the spokes when the wheel is in use would spread the sockets and make the spokes loose and -more liableto break.

The object of my invention is to prevent the spokes becoming loose and to rigidly secure the same in the sockets of the hub` in the manner substantiallyas hereinafter fully described and as particularly pointed out inthe claims. f

In thedrawings, Figure l isan end view of the hub of myimproved wheel.4 Fig. 2 is a side view thereof, showing the lower half iulongill tudinal section and a spoke inserted inthe socket. Fig. 3 is a longitudinal centralsection of one-half of the hub, having a modified construction of the spoke secured'therein.V Fig. 4 is a similar View showing another modified construction of the spoke inserted in the hub, and Fig. 5 is a similar View showing yet another modified construction of the spoke. Fig. 6 is a detail view showing aseo-l tionthrough'a portion of the united plates,` showing modified means of securing said plates together at points between the sockets.-

In the drawings, `A represents a metal core forthe hub, the body of which is barrel-A shaped and theends reduced to a less diameter, to i produce `the `shoulders a. a, and tapered. t. Y

B Brepresent `two corresponding circular ,form of metal wheel. sists in providing the hitherto plain or straight .sides of the end of the spoke with two laterplates, which are provided with central openings of about the same diameter asthe base of shoulders a, and the central portion is swaged to form a cup-shaped hub-section b, the marginalportion c ofwhich surrounding the central' opening being inturned, and the length of thesame corresponding to the distance between shoulders ct and the center of length of the core A. The remaining portion of platesB flare outward to form circumferential flanges d,in the surfaces of whicl1,opposite the side from which the hub sections project, are made a series of radial corrugations or grooves C C, the curvature and dimensions of which correspond to one-half the transverse contours of the inner end ofthe spoke D. Vhen the plates B are placed on the core A so that the inturned marginal edges of the central opening thereof bear against shoulders ct and the flanges d of the'samecome together at the center of length of the hub in proper position, said plates are riveted together by rivets e, extending through the same between the grooves 0.1 The proper position for these plates to be in when thus secured-together is such that thegrooves C of both plates come in the same radial planes and form spoke sockets. i

The preceding description relates to an old My improvement conally-projecting integral studs g, located diametrically opposite each other, and in providing openings k in the sides of the sockets in said plates, into and out through which said studs are extended when said plates are brought together and have their outer ends be relied upon to secure said plates together, or if said rivets are used the swaging of the ends. of studs or otherwise forming a head thereon may be omitted, as in thislatter event they would ,effectually prevent the accidental withdrawal of the spoke. While I much preferthe use of two studs g, as hereinbefore described, yet it is Aobvious one only could be IOO employed. Studs g are shown in the drawings and are hereinbefore described as being integral with the spoke. This is thought to be the best inode of constructiomas the spoke is not thereby weakened. A pin or independent rivet of such length that its ends couldy projectl sufficient-ly beyond the sides of the spoke, however, could be used and made to answer the same purpose, substantially as shown in Fig. 5 of the drawings.

` In Fig. 6 I show a modified means of securing the plates together at points between the sockets as a substitute for rivets c, consisting of forming one of said plates with a circular opening m and the other plate with an integral tubular offset or rivet n, which when the plates are brought together extend through opening m and have their edges o swaged or bent outward to lap over the margins of opening n and clamp the plates together.

What I claim as new isl. In a metal wheel, a hub having two annular metal plates the radially-disposed portions of which are clamped together and have sockets formed between their meeting faces, in combination with metal spokes the inner end portions of which between theirinner extremities and the part thereof outside of said sockets, have lateral projections, which,when said plates are clamped together extend through the wall of the sockets.

2. In a metal wheel, a hub having two annular metal plates the radially-disposed portions of which are clamped together and have sockets formed between their meeting faces, in combination with metal spokes the inner end portions of which between their inner extremities and the part thereof outside of said sockets have lateral projections, which, when said plates are clamped together extend through the wall of the sockets, and are headed.

3. In a metal wheel, a hub having two annular metal plates the radially-disposed portions of which are clamped together and. have sockets formed between their meeting faces, in combination with metal spokes the inner portions of which have oppositely-located lateral projections between their inner extremities and the part thereof outside said sockets, which when said plates are clamped together enter the walls of thesocket in which they are seated. Y

4. In a metal wheel, a hub having two annular plates the radially-flanged portions of which are brought in contact and have sockets formed between the meeting faces thereof, and rivets extending through said flanges at points located between said sockets for clamping said plates together,in combination with metal spokes the inner end portions of which between their inner extremities and the part outside of said sockets are provided with projections which extend into suitable seats in the walls of said socket.

5. In a metal wheel, a hub having two annular plates the radially-fiangcd portions of which are brought in contact and have sockets with openings in their sides formed between the meeting faces thereof, and rivets extending through said flanges at points located between said sockets for clamping said plates together, in combination with metal spokes the inner end portions of which between their inner extremities and the part outside of said sockets are provided with projections which extend into and through the openings in the sides of said sockets.

6. In a metal wheel, a hub having two annular plates the radially-flanged portions of which are brought in contact and have sockets with openings in their sides formed between the meeting faces thereof, and rivets extending through said flanges at points l0- cated between said sockets for clamping said plates together, in combination with metal spokes the inner end portions of which between their inner extremities and the part outside of said sockets are provided with projections which extend into and through the openings in the sides of said sockets and have their extremities headed.

WILLIAM P. BETTENDORF.

Witnesses:

M. FRIEL, FRANK D. THoMAsoN. 

